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Article

Organic Rankine Cycle Waste Heat Recovery for Passenger Hybrid Electric Vehicles

1
Department of Mechanical and Aerospace Engineering, Brunel University, London UB8 3PH, UK
2
Metapower Limited, Northwood, London HA6 2NP, UK
3
Department of Mechanical Engineering, University of Hail, Hail 81481, Saudi Arabia
*
Author to whom correspondence should be addressed.
Energies 2020, 13(17), 4532; https://doi.org/10.3390/en13174532
Received: 9 July 2020 / Revised: 25 August 2020 / Accepted: 25 August 2020 / Published: 1 September 2020
(This article belongs to the Special Issue Waste Energy Recovery and Valorization in Internal Combustion Engines)
Electrification of road transport is a major step to solve the air quality problem and general environmental impact caused by the still widespread use of fossil fuels. At the same time, energy efficiency in the transport sector must be improved as a steppingstone towards a more sustainable future. Multiple waste heat recovery technologies are being investigated for low-temperature waste heat recovery. One of the technologies that is being considered for vehicle application is the Organic Rankine Cycle (ORC). In this paper, the potential of ORC is discussed in detail for hybrid vehicle application. The modelling and testing of multiple systems such as the hybrid vehicle, engine, and ORC waste heat recovery are performed using the computational approach in GT-SUITE software environment correlated against available engine data. It was found that the maximum cycle efficiency achieved from the ORC system was 5.4% with 2.02 kW of delivered power recovered from the waste heat available. This led to 1.0% and 1.2% of fuel economy improvement in the New European Driving Cycle (NEDC) and Worldwide Harmonised Light Vehicle Test Procedure (WLTP) driving cycle test, respectively. From the driving cycle analysis, Hybrid Electric Vehicles (HEV) and ORC are operative in a different part of the driving cycle. This is because the entire propulsion power is provided by the HEV system, resulting in less engine operation in some part of the cycle for the ORC system to function. Apart from that, a brief economic analysis of ORC Waste Heat Recovery (WHR) is also performed in this paper and a comparative analysis is carried out for different waste heat recovery technologies for hybrid vehicle application. View Full-Text
Keywords: organic rankine cycle; hybrid electric vehicles; ORC; HEV; WHR; waste heat recovery organic rankine cycle; hybrid electric vehicles; ORC; HEV; WHR; waste heat recovery
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MDPI and ACS Style

Bin Wan Ramli, W.R.; Pesyridis, A.; Gohil, D.; Alshammari, F. Organic Rankine Cycle Waste Heat Recovery for Passenger Hybrid Electric Vehicles. Energies 2020, 13, 4532. https://doi.org/10.3390/en13174532

AMA Style

Bin Wan Ramli WR, Pesyridis A, Gohil D, Alshammari F. Organic Rankine Cycle Waste Heat Recovery for Passenger Hybrid Electric Vehicles. Energies. 2020; 13(17):4532. https://doi.org/10.3390/en13174532

Chicago/Turabian Style

Bin Wan Ramli, Wan Rashidi, Apostolos Pesyridis, Dhrumil Gohil, and Fuhaid Alshammari. 2020. "Organic Rankine Cycle Waste Heat Recovery for Passenger Hybrid Electric Vehicles" Energies 13, no. 17: 4532. https://doi.org/10.3390/en13174532

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